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Welcome to tech News Briefing. It's Tuesday, January 30th. I'm Alex Oscela for the Wall Street Journal. Coming up on today's show, over the weekend, social media platform X banned searches for one of the most famous people in the world, Taylor Swift.

W.S.J. reporter, Alexa Course, breaks down what led up to the ban and what it tells us about content

moderation on the platform.

And then, venture capitalists have poured more than $100 billion into US defense technology

startups in recent years.

So why are they struggling to win over the Defence Department?

We'll hear about what's at stake for these companies and the US military,

from W.S.J. reporter Heather Somerville. But first, if you typed Taylor Swift's name into the search on X over the weekend,

you wouldn't have gotten information about her upcoming tour dates or any gossip about her relationship with football player

Travis Kelsey, you would have received an error message. That's because, beginning on Wednesday

last week, the platform was flooded with explicit AI-generated images of the singer.

X banned searches of SWIFT's name. On Monday evening, X lifted the ban.

Its head of business operations said that search had been re-enabled and that the company will be

vigilant in removing this content. Here to tell us more about the incident and what it means for

...